オブジェクト不明時にログに出力

Change-Id: I6e2f36d0649f0ed2d05fd6c9e6965985173425d6
Merge branch 'master' of https://github.com/lavans/lacoder2.git
get Host header via proxy

Change-Id: I2e044b5656aec2346e5e2de71f444fcfaf1a6173